2943246728 has 16 divisors (see below), whose sum is σ = 5520349260. Its totient is φ = 1471153600.

The previous prime is 2943246697. The next prime is 2943246731. The reversal of 2943246728 is 8276423492.

2943246728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2871030724 + 72216004 = 53582^2 + 8498^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31343 + ... + 82878.

Almost surely, 2^2943246728 is an apocalyptic number.

It is an amenable number.

2943246728 is a deficient number, since it is larger than the sum of its proper divisors (2577102532).

2943246728 is a wasteful number, since it uses less digits than its factorization.

2943246728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117448 (or 117444 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 47.

The square root of 2943246728 is about 54251.6979273460. The cubic root of 2943246728 is about 1433.0969002241.

The spelling of 2943246728 in words is "two billion, nine hundred forty-three million, two hundred forty-six thousand, seven hundred twenty-eight".